{"product_id":"cooper-bussmann-fnq-4-10-time-delay-fuse-0-4a-500v","title":"Cooper Bussmann FNQ-4\/10 Time Delay Fuse 0.4A 500V","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe COOPER BUSSMANN FNQ-4\/10 is a time delay cartridge fuse rated at 0.4 amps and 500 volts AC, with an interrupting capacity of 10 kA. The fuse body is constructed from fiber and features a cartridge form factor designed to seat in a standard fuse holder. It is used in low-current branch circuit and control circuit protection applications. The orange color coding aids in quick amperage identification during service calls. Electricians and maintenance technicians install this fuse type in industrial control panels, motor control circuits, and supplementary overcurrent protection applications where a time delay characteristic is required to ride through inrush events without nuisance tripping.\u003c\/p\u003e\u003cp\u003eThis fuse is suited for general-purpose overcurrent protection in residential, commercial, and light industrial control circuits. The time delay rating allows it to handle brief current surges common in motor starter and transformer circuits without opening prematurely. At 1-1\/2 inches in overall length and 10.30 mm in diameter, it fits standard ferrule-style fuse holders sized for this footprint. It is commonly installed by licensed electricians working on low-voltage control wiring, HVAC equipment control circuits, and industrial machine panels where precise, low-amperage overcurrent protection is needed.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTime delay characteristic handles motor inrush and transformer surge without nuisance trips\u003c\/li\u003e\n\u003cli\u003eRated 0.4 amps at 500 volts AC with 10 kA interrupting capacity\u003c\/li\u003e\n\u003cli\u003eFiber cartridge body construction for reliable performance in fuse holder mounts\u003c\/li\u003e\n\u003cli\u003eOrange color body for fast visual amperage identification in the field\u003c\/li\u003e\n\u003cli\u003eCE Certified, CSA Certified, UL Listed 248-14, and RoHS Compliant\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in standard ferrule-style cartridge fuse holders that accept a 10.30 mm diameter, 1-1\/2 inch length fuse body. Suitable for general-purpose supplementary and branch circuit protection applications where a 500V time delay fuse of this amperage rating is specified.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation must be performed by a qualified electrician in accordance with NEC requirements for overcurrent protection devices. De-energize and lock out the circuit before removing or installing fuses. Use an insulated fuse puller appropriate for cartridge fuses when servicing live panels. Verify that the fuse holder is rated for the voltage and current of this fuse before installation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 0.4 amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating\u003c\/strong\u003e: 500 volts AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupting Capacity\u003c\/strong\u003e: 10 kA at AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Timing\u003c\/strong\u003e: Time Delay\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Body Type\u003c\/strong\u003e: Cartridge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.5 inches (38.10 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Diameter\u003c\/strong\u003e: 10.30 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Fiber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Fuse Holder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Orange\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications\u003c\/strong\u003e: CE Certified; CSA C22.2 No.248.14 Class 1422-01 File 53787 HRC-MISC Certified; RoHS Compliant; UL Listed 248-14 Guide JDYX File E19180\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 39121605\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: COOPER BUSSMANN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: FNQ-4\/10\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EATON","offers":[{"title":"Default Title","offer_id":51720955494706,"sku":"FNQ-4\/10","price":117.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4d40cb7a73252f61048aa1a50ab7754f.jpg?v=1788571437","url":"https:\/\/voomisupply.com\/products\/cooper-bussmann-fnq-4-10-time-delay-fuse-0-4a-500v","provider":"Voomi Supply","version":"1.0","type":"link"}